GB/T 4706.32-2024 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 4706.32-2024 | English | 1850 |
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Safety of household and similar electrical appliances - Part 32: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
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| GB 4706.32-2012 | English | 315 |
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Household and similar electrical appliances -- Safety -- Particular requirements for heat pumps, air-conditioners and dehumidifiers
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| GB 4706.32-2004 | English | RFQ |
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Safety of household and similar electrical appliances -- Particular requirements for heat Pumps, air-conditioner and dehumidifier
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| GB 4706.32-1996 | English | RFQ |
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Safety of household and similar electrical appliances. Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
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GB/T 4706.32-2024: Safety of household and similar electrical appliances - Part 32: Particular requirements for electrical heat pumps, air-conditioners and dehumidifiers
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT4706.32-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 13.120
CCS K 09
GB/T 4706.32-2024 / IEC 60335-2-40.2022
Replacing GB 4706.32-2012
Safety of Household and Similar Electrical Appliances –
Part 32.Particular Requirements for Electrical Heat Pumps,
Air-Conditioners and Dehumidifiers
(IEC 60335-2-40.2022, Household and Similar Electrical Appliances – Safety- Part 2-
40.Particular Requirements for Electrical Heat Pumps, Air-Conditioners and
Dehumidifiers, IDT)
Issued on: JULY 24, 2024
Implemented on: AUGUST 1, 2026
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 4
Introduction... 8
1 Scope... 9
2 Normative References... 10
3 Terms and Definitions... 13
4 General Requirement... 22
5 General Conditions for the Tests... 22
6 Classification... 23
7 Marking and Instructions... 24
8 Protection against Access to Live Parts... 31
9 Starting of Motor-Operated Appliances... 31
10 Power Input and Current... 31
11 Heating... 31
12 Void... 35
13 Leakage Current and Electric Strength at Operating Temperature... 35
14 Transient Over-Voltages... 35
15 Moisture Resistance... 36
16 Leakage Current and Electric Strength... 37
17 Overload Protection of Transformers and Associated Circuits... 37
18 Endurance... 38
19 Abnormal Operation... 38
20 Stability and Mechanical Hazards... 45
21 Mechanical Strength... 46
22 Construction... 47
23 Internal Wiring... 63
24 Components... 63
25 Supply Connection and External Flexible Cords... 65
26 Terminals for External Conductors... 65
27 Provision for Earthing... 65
28 Screws and Connections... 66
29 Clearances, Creepage Distances and Solid Insulation... 66
30 Resistance to Heat and Fire... 66
31 Resistance to Rusting... 68
Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for
Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents.
This Document is Part 32 of GB/T 4706 Safety of Household and Similar Electrical Appliances.
GB/T 4706 has published the following parts.
--- Part 1.General requirements;
--- Part 2.Particular requirements for electric irons;
--- Part 121.Particular requirements for professional ice-cream makers.
This Document replaced GB 4706.32-2012 Household and Similar Electrical Appliances –
Safety – Particular Requirements for Heat Pumps, Air-Conditioners and Dehumidifiers.
Compared with GB 4706.32-2012, the major technical changes of this Document are as follows
besides structural adjustments and editorial modifications.
--- Change the applicable voltage range of single-phase appliances (see Clause 1 of this
Edition; Clause 1 of the 2012 Edition);
--- Add some units; clarify that thermoelectric heat pumps, dehumidifiers with and without
compressors are within the scope of the standard (see Clause 1 of this Edition);
--- Add the provisions on the scope of refrigerants applicable to this Document (see Clause
1 of this Edition);
--- Add more than 30 terms and definitions such as "particle foam material", "factory sealed
single package unit", "pre-charged pipe sets", etc. (see 3.127~3.165 of this Edition);
--- Delete the terms and definitions such as "comfort dehumidification", "process
dehumidification", and "heat recovery dehumidification" (see 3.105~3.107 of the 2012
Edition);
--- Add the refrigerant pipe length during testing (see 5.10 of this Edition);
--- Change the flame symbol of flammable refrigerants; add the minimum room area symbol;
add leakage monitoring devices, electric safety protection measures and other related
instructions (see Clause 7 of this Edition; Clause 7 of the 2012 Edition);
--- Add pressure symbols; add trans-critical refrigeration system related instructions (see
Clause 7 of this Edition);
--- Add UV-C germicidal lamp system requirements (see Clause 7 of this Edition);
--- Add some unit instructions related requirements (see Clause 7 of this Edition);
--- Add installation position requirements for panel or cover installation tests (see 8.1.5 of
this Edition);
--- Add testing procedures of the heating test (see Clause 11 of this Edition);
--- Change the leakage current requirements for stationary Class I appliances (see Clauses
13 and 16 of this Edition; Clauses 13 and 16 of the 2012 Edition);
--- Add related requirements for supplementary air heaters (see 19.104 of this Edition);
--- Add abnormal tests for dehumidifiers (see 19.105 of this Edition);
--- Add related requirements for particle foam materials (see 21.2 of this Edition);
--- Add vibration tests during transportation of appliances using flammable refrigerants (see
21.101 of this Edition);
--- Add conditions for arc or spark ignition sources to be considered as non-ignition sources
(see 22.116 of this Edition);
--- Change related requirements for hot surfaces (see 22.117 of this Edition; 22.117 of the
2012 Edition);
--- Change related requirements for indoor mechanical joints (see 22.118 of this Edition;
22.118 of the 2012 Edition);
--- Add related requirements for leakage monitoring system, refrigerant monitoring system,
enhanced sealed refrigeration system, safety shut-off valve requirements (see
22.121~22.123, 22.125, 22.132 of this Edition);
--- Add related requirements for some units (see 22.119, 22.120 of this Edition);
--- Add UV-C germicidal lamp system requirements (see 22.126~22.130 of this Edition);
--- Add related requirements for trans-critical refrigeration system (see 22.131 of this
Edition);
--- Added related requirements for particle foam material (see 22.133, 22.134 of this Edition);
--- Add requirements to avoid the connection between lines and pipes (see Clause 23 of this
Edition);
--- Add related requirements for compressors, refrigerant detection systems, and pressure
limiting devices for trans-critical refrigeration systems (see Clause 24 of this Edition);
Safety of Household and Similar Electrical Appliances –
Part 32.Particular Requirements for Electrical Heat Pumps,
Air-Conditioners and Dehumidifiers
1 Scope
This clause of GB/T 4706.1-2024 is replaced by the following.
This Document specifies the safety requirements for household and similar heat pumps, air
conditioners and dehumidifiers.
This Document deals with the safety of electric heat pumps, sanitary hot water heat pumps
and air conditioners, incorporating motor-compressors as well as hydronic fan coils units,
dehumidifiers (with or without motor-compressors), thermoelectric heat pumps and partial
units. Their maximum rated voltage being no more than 300 V for single phase appliances and
600 V for multi-phase appliances.
Appliances not intended for normal household use but which nevertheless can be a source of
danger to the public, such as appliances intended to be used by laymen in shops, in light industry
and on farms, are within the scope of this Document.
The appliances referenced above can consist of one or more factory-made assemblies. If
provided in more than one assembly, the separate assemblies are used together, and they are
based on the use of matched assemblies specified in the technical requirements of this
Document.
NOTE 101.A definition of ‘motor-compressor’ is given in IEC 60335-2-34, which includes the statement
that the term motor-compressor is used to designate either a hermetic motor-compressor or semi-hermetic
motor-compressor.
NOTE 102.Requirements for containers intended for storage of the heated water included in sanitary
hot water heat pumps are, in addition, covered by IEC 60335-2-21.
This Document does not take into account refrigerants other than group A1, A2L, A2 and A3
as defined by ISO 817.Flammable refrigerants are limited to those of a molar mass of more
than or equal to 42 kg/kmol based on WCF (worst case formulation) as specified in ISO 817.
As far as practical, this Document deals with common hazards presented by appliances that are
encountered in normal use and assumes that installation, servicing, decommissioning, and
disposal are safely handled by competent persons and accidental release of refrigerants is
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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